openstreetmap in ghana @ sfd 2015

CC-BY-SA 4.0

OpenStreetMap in GhanaEnock Seth Nyamador

GIS Enthusiast and Open Data advocate

Twitter : @Enock4seth

What is a mapping to you ?

OpenStreetMap

Wikipedia of Maps

OPEN DATA

Open Licensed

Map the world from scratch!

(no copying)

Open Database License (ODbL)

● Open Database License (OdbL)● Free as in FREEDOM● Free to edit● Collaborative

How ?● Local knowledge● Tracing aerial imagery (Bing, MapBox, etc)● Imports● GPS traces● Someone puts it there, and others look at it and

confirm that it is correct

Tags● Using key = value pair to define map features● amenity = fuel

● building = yes

● highway = residential

● Landuse = farm

● http://wiki.openstreetmap.org/wiki/Map_Features

Elements

● Node● Ways● Relation

Node● Latitude and Longitude● Node ID● ATM, Post Office, Bar, Pub etc.

Ways● Linear● Closed● Area● Used for ; roads, buildings, etc

Relation● Used to model logical or geographic relations

between objects● To define routes, administration boundaries

Participate● Online

– OpenStreetMap Editors ; iD, Potlatch, JOSM– IOS – Go Maps, OSMTracker, OpenMaps– Android – OSMTracker, OSMDroid– GPS device

● Offline– fieldpapers.org

Editing OpenStreetMap● ID

● Potlatch

● JOSM

What can I map?

Anything that physically exists and is permanent

Recording dataNames of streets

Types of streets (trunk, residential, motorway)

One-way restrictions

Footpaths, tracks, pedestrian, rivers, railways

Parks, woodland, industrial areas, cemeteries

POI (pubs, cash machines, post offices,

post boxes, bus stops, toilets, supermarkets, restaurants, monuments, hotels, picnic sites, barriers, light houses, piers, sports centres, petrol stations, playgrounds, cinemas, car parks, universities, tourist information, etc etc etc

Who uses OpenStreetMap  data?

Using OpenStreetMap

● MAPS.ME

● OSMAnd

How can I use this data ?● Data is stored as XML (open)

● Convertible to: postGIS, SHP, geoJSON & more

OpenStreetMap Ghana● Small community of OSMers● To create Free detailed and up to date maps● Join us :

– talk-gh@openstreetmap.org– twitter.com/osmghana– facebook.com/openstreetmapghana

OpenStreetMap Use Cases● Humanitarian OpenStreetMap Team (HOT)● 2010 Haiti Earthquake ● 2014 Ebola virus epidemic in West Africa● 2015 Nepal earthquake● Ramani Huria, Dar Es Salaam● Etc...

Getting started !

beamapper.com

learnosm.org

Is that all ?

No !

Thank YouEnock Seth Nyamador

GIS Enthusiast and Open Data advocate

Twitter : @Enock4seth